[Vue warn]: Attribute "id" is ignored on component <div> because the component is a fragment instance
今天自己做一个vue小项目的时候,老是报这个错误,百度之后解释是只能有一个最顶级的父元素,但是我最外层只用了一个div
出现fragment instance有多种情况:
- Template contains multiple top-level elements. (模版包涵了多个顶级元素 说白了 你的模版元素没有唯一一个父元素)
- Template contains only plain text.(模版里面只包涵纯文本)
- Template contains only another component (which can potentially be a fragment instance itself).(模版只包含另外一个组件,而这个组件本上可以就是一个fragment instance)
- Template contains only an element directive, e.g.
<partial>
or vue-router’s<router-view>
.(模版只包含<partial>或者<router-view>组件 ) - Template root node has a flow-control directive, e.g.
v-if
orv-for
.(模版根节点被v-if活着v-for有个逻辑判断)
时间: 2024-10-31 15:05:00